Tether.



No. 729,912. PATENTBD J'UNE'QLIQOB; G. K. ANDREWS.

TBTHER. APPLI OATION FILED SEFT. 6, 1902,

no MODEL.

1 ITED STATES i Patented. June 2, 1903.

PATENT OFFICE.

TETHER.

V SPECIFICATION forming part of Letters Patent .No. 729,912, dated June 2, 1903.

Application filed September 6, 1902. berial lio. 122,373. (No model.)

To all whmn it may concern."

Be it known that I, GEORGE K. ANDREWS,

a citizen of the United States, residing in Webster Groves, in the county of St. Louis ers, of which the following is a full, clear,

and exact description, reference being had to the accompanying drawings, forming part of this specification. i Y

My invention relates to a revolving tether, to which an animal, such as a horse, may be attached to permit of its grazing over a limited area without liability'of' becoming tangled in the strap or rope by which it is held.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a perspective view of my tether. Fig. 11 is an enlarged vertical section taken through the post of the tether and the bearing between the revolving frame and said post. Fig. III is a horizontal section taken on line III III, Fig. 11.

1 designates the upright post of the tether, which is mounted on across-frame 2, and 3 are braces connecting the outer ends of the cross frame to the post. Approximately midway of the height of the postl is a shoul- 3omler 4:.

. post.

5designates a horizontaltop'bar that is loosely mounted on the post 1 to revolve thereon.

6 designates braces fixed to the top bar 5, that with said top bar constitute arevolving frame that may rotate with respect to the post 1.

7 is apole secured to the top bar 5 by clips 8 and provided at its outer end with a knob 9. '10 designates a sleeve fitted to the post 1 and adapted to rest on the shoulder l of said This'sleeve is provided centrally with an annular rib 11.

12 designates an upper bearingring that rests upon the annular rib 11, said ring being provided with upwardly-projecting arms 13, to which the revolving-frame braces 6 are attached for their support. I

14: designates fingers extending downwardly from the upper bearing-ring 12.

15 is a lower bearing-ring surrounding the spring 20.

sleevelO beneath the rib 11 and provided with apertures 16, that receive the fingers 14 of the upper bearing-ring 12. The ring 15 is upheid by keys 17 seated in the fingers The lower bearing-ring 15 is provided with an extension 18, that contains a hole 19 which receives one end of a balance- The opposite end of the spring is connected to an adj ustment-rod 21, that passes through a strap 22, attached to the top revolving'frame bar 5. The upper end of the rod 21, which passes through said strap, is threaded and receives an adjustment-nut 23, by which the rod maybe adjusted longitudinally to vary the tension of the spring 20.

In the practical use of the tether the revolving frame may be rotated on the post 1, in which movement it is supported by the upper ring 12, to which the frame brace-bars 6 are attached. The lower ring 15, in con nection with the spring 20 and its ad justmentrod, constitutes a balance for the pole 7, extending from the opposite side of the frame, the balance being secured by reason of the spring 20 exerting a downward pull upon the rear side of the revolving frame to counterbalance the pole, the proper degree of balancing action being secured through the adjustment of the nut 23 on the adjustmentrod 21. It willbe seen that as the lower bearing-ring'15 is loosely positioned beneath the-annular rib 11 of the sleeve 10 and its adjustment to the upper bearing-ring by the fingers 14. it revolves freely with the pole carrying frame, and the spring 20 is con stantly held in the proper position opposite tothe extending pole to counterbalance it.

24 is a ring adapted to travel 011 the pole 7, its outward movement being limited by the knob 9. p r

25 is a halter that may be applied to the head of the animal hitched to the tether, the halter being connected to the ring 24 by a rope 26, connected with the halter by means of a ring 29 and provided at the other end with a snap 27, the rim 29 sliding upward on the halter jaw-piece 30 when the head of the animal is lowered, thus carrying and holding the rope'so far off the ground that the animal when grazing cannot entangle its feet therein.

relieved from strain to reinstate the slack' therein.

I claim as my invention 1. In a tether, the combination of a post, a top bar rotatably mounted on said post, a

pole carried by said bar, a revolving member encircling said post, a pair of braces interposed between said top bar and said revolving member, and a counterbalance-spring connected to said revolving member, and said top bar, substantially as set forth.

.2. In a tether, the combination of a post, a top bar rotatably mounted on said post, a a pole carried by said bar, a revolving member encircling said post, a counterbalancespring connected to said revolving member, and an adj ustment-rod forming a connection between said spring and said top bar, substantially as set forth.

3. In a tether, the combination of a post, a revolving frame mounted on said post, a pole carried by said frame, a sleeve fitted to said post, an annular rib on said sleeve, an upper bearing-ring attached to said revolving frame and resting on said rib, a lower bearing-ring encircling said sleeve below said rib, and a counterbalance spring connected to said ing-ring, and an adjustment-rod connecting said spring to said revolving frame, substantially as set forth.

5. In a tether, the combination of a post, a revolving frame consisting of a top bar surmounting said post and brace-bars extending downwardly therefrom, a sleeve fitted to said post, an annular rib projecting from said sleeve, an upper bearing-ring seated on said rib and to which said braces are attached, fingers depending from said upper ring, a lower bearing-ring positioned beneath the rib of said sleeve and provided with apertures that receive the fingers of the upper bearingring, and a counterbalance-spring connected to said lower bearing-ring and to the top bar of the revolving frame, substantially as set forth.

GEORGE K. ANDREIVS.

In presence of W. L. A DREWS, II. A. ()ooHRAN. 

